[jwplayer config=”480×360-4:3″ mediaid=”57687″]

(Activity updates are written by scientists at the U.S. Geological Survey’s Hawaiian Volcano Observatory.)

View looking nearly straight down into the open top of a spatter cone built over the September 21 fissure on Pu‘u ‘O‘o's east flank. The brighter, yellowish zone is the surface of the active lava stream as it flows downslope (toward the top of the photo).

A lava lake was present within the Halema`uma`u Overlook vent over the past week, resulting in night-time glow that was visible from the Jaggar Museum overlook. The lake, which is about 100 m (328 ft) below the floor of Halema`uma`u and visible by Webcam, rose and fell slightly during the week in response to a series of small deflation-inflation cycles.

Activity on Kilauea’s east rift zone was restricted to surface flows about 2.5 km (1.5 miles) east-southeast of Pu`u `O`o. These flows travel through a lava tube that is fed by the September 21 fissure on the upper east flank of the Pu`u `O`o cone.

No earthquakes beneath Hawai`i Island were reported felt this past week.

Visit the HVO Web site (http://hvo.wr.usgs.gov) for detailed Kilauea and Mauna Loa activity updates, recent volcano photos, recent earthquakes, and more. Call (808) 967-8862 for a Kilauea summary and email questions to askHVO@usgs.gov.

Volcano Watch is a weekly article and activity update written by scientists at the U.S. Geological Survey’s Hawaiian Volcano Observatory.

[jwplayer config=”550×310-16:9″ mediaid=”57688″]